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UNI EN 1775 : 2007

Current
Current

The latest, up-to-date edition.

GAS SUPPLY - GAS PIPEWORK FOR BUILDINGS - MAXIMUM OPERATING PRESSURE LESS THAN OR EQUAL TO 5 BAR - FUNCTIONAL RECOMMENDATIONS
Published date

18-10-2007

INDICE
PREMESSA
INTRODUZIONE
1 SCOPO E CAMPO DI APPLICAZIONE
2 RIFERIMENTI NORMATIVI
3 TERMINI E DEFINIZIONI
  3.1 Definizioni relative alla pressione
  3.2 Definizioni relative agli impianti a gas
  3.3 Definizioni relative ai dispositivi di
      intercettazione
  3.4 Definizioni relative ai sistemi di giunzione
  3.5 Definizioni relative ai componenti
  3.6 Definizioni relative alle prove
  3.7 Definizioni relative alla messa in servizio,
      funzionamento e manutenzione
  3.8 Definizioni relative ai processi di assemblaggio
      3.8.1 Definizioni per la saldatura
      3.8.2 Definizioni per la saldatura e la brasatura
4 PROGETTAZIONE
  4.1 Generalità
  4.2 Selezione dei componenti
  4.3 Luogo di installazione
  4.4 Protezione antincendio
  4.5 Dimensionamento
  4.6 Dispositivi di sicurezza
5 COSTRUZIONE
  5.1 Installazione
  5.2 Metodi di collegamento delle tubazioni
      5.2.1 Giunti filettati
      5.2.2 Giunti saldati, brasati e per fusione
      5.2.3 Giunti meccanici
      5.2.4 Giunti a pressare
      5.2.5 Collegamento di tubazioni semirigide
            corrugate di acciaio inossidabile
  5.3 Attraversamento di muri e pavimenti
  5.4 Corrosione
  5.5 Dispositivi di intercettazione
  5.6 Regolatori di pressione e contatori del gas
  5.7 Tubazioni flessibili per collegamento di
      apparecchi
6 PROVE
  6.1 Raccomandazioni generali
  6.2 Raccomandazioni relative alla sicurezza di
      persone e cose durante le prove
  6.3 Fluidi di prova
      6.3.1 Fluidi utilizzati
      6.3.2 Utilizzo di gas inerte
      6.3.3 Utilizzo del gas distribuito
  6.4 Condizioni di prova
  6.5 Prova di resistenza meccanica
  6.6 Prova di tenuta
  6.7 Prove supplementari
7 MESSA IN SERVIZIO
  7.1 Generalità
  7.2 Messa in gas
8 ESERCIZIO E MANUTENZIONE
  8.1 Generalità
  8.2 Manutenzione
  8.3 Situazioni anomale
  8.4 Ricerca di perdite
  8.5 Lavori durante l'esercizio
  8.6 Messa fuori servizio
APPENDICE A (informativa) - RESISTENZA ALLE ALTE
            TEMPERATURE
          A.1 Generalità
          A.2 Procedimento A
              A.2.1 Criteri di prova
              A.2.2 Metodo di prova
          A.3 Procedimento B
              A.3.1 Criteri di prova
              A.3.2 Metodo di prova
APPENDICE B (informativa) - LINEE GUIDA GENERALI
            PER LA REALIZZAZIONE DI GIUNTI
          B.1 Generalità
          B.2 Operatori
          B.3 Controllo qualità
          B.4 Documentazione
APPENDICE C (informativa) - LINEE GUIDA PER LA
            REALIZZAZIONE DI GIUNTI SALDATI, BRASATI
            E BRASATI FORTE E DI GIUNTI OTTENUTI
            MEDIANTE SALDATURA PER FUSIONE DEL
            POLIETILENE
          C.1 Saldatura dell'acciaio
              C.1.1 Materiali
              C.1.2 Approvazione del procedimento
                    di saldatura
              C.1.3 Tubazioni con una pressione di
                    esercizio massima (MOP) minore o
                    uguale a 0,1 bar e uno spessore
                    delle pareti minore di 4 mm
              C.1.4 Tubazioni con una pressione di
                    esercizio massima (MOP) maggiore
                    di 0,1 bar o uno spessore delle
                    pareti di 4 mm o maggiore
          C.2 Brasatura e brasatura forte del rame e
              sue leghe
              C.2.1 Materiali
              C.2.2 Procedimento di brasatura e brasatura
                    forte
              C.2.3 Tubazioni con una pressione di
                    esercizio massima (MOP) minore
                    o uguale a 0,1 bar
              C.2.4 Tubazioni con una pressione di
                    esercizio massima (MOP) maggiore
                    di 0,1 bar
          C.3 Giunzione mediante fusione del polietilene
              C.3.1 Materiali
              C.3.2 Procedimento di giunzione mediante
                    fusione del polietilene
              C.3.3 Qualifica del personale
              C.3.4 Controllo qualità
APPENDICE D (informativa) - LINEE GUIDA PER LA
            REALIZZAZIONE DI GIUNTI A PRESSARE
          D.1 Procedimento di giunzione con raccordi
              a pressare sui tubi di rame
              D.1.1 Generalità
              D.1.2 Processo di installazione
          D.2 Procedimento di giunzione con raccordi
              a pressare su tubi multistrato e tubi PEX
              D.2.1 Generalità
              D.2.2 Processo di installazione
APPENDICE E (informativa) - LINEE GUIDA PER LA
            REALIZZAZIONE DI SISTEMI DI TUBAZIONI
            CORRUGATE SEMIRIGIDE DI ACCIAIO INOSSIDABILE
          E.1 Generalità
          E.2 Componenti del sistema
          E.3 Procedimento di collegamento di sistemi
              di tubazioni corrugate semirigide di
              acciaio inossidabile
              E.3.1 Generalità
              E.3.2 Formazione del personale
              E.3.3 Controllo qualità
BIBLIOGRAFIA

Describes general recommendations for the design, construction, testing, commissioning, operation and maintenance of installation pipework; pipework between the delivery point of the gas and the inlet connection to the gas appliance.

Committee
CT 105
DocumentType
Standard
PublisherName
Ente Nazionale Italiano di Unificazione (UNI)
Status
Current

Standards Relationship
BS EN 1775:2007 Identical
UNE-EN 1775:2008 Identical
NBN EN 1775 : 2007 Identical
NEN EN 1775 : 2007 Identical
EN 1775:2007 Identical
NS EN 1775 : 2ED 2007 Identical
NF EN 1775 : 2007 Identical
I.S. EN 1775:2007 Identical
SN EN 1775 : 2007 Identical
DIN EN 1775:2007-10 Identical

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UNI/TS 11343 : 2009 GAS PLANTS FOR DOMESTIC USE - GAS PLANTS FOR DOMESTIC USES SUPPLIED BY DISTRIBUTION NETWORKS, BY LPG CYLINDERS AND LPG STORAGE TANKS, PERFORMED WITH MULTILAYER PIPES - DESIGN, INSTALLATION AND MAINTENANCE
UNI 11353 : 2010 STAINLESS STEEL CORRUGATED FLEXIBLE SAFETY HOSE ASSEMBLIES FOR THE CONNECTION OF GAS APPLIANCES FOR DOMESTIC AND SIMILAR USES - SAFETY REQUIREMENTS
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EN 1254-3:1998 Copper and copper alloys - Plumbing fittings - Part 3: Fittings with compression ends for use with plastics pipes
EN 444:1994 Non-destructive testing - General principles for radiographic examination of metallic materials by X- and gamma-rays
EN ISO 5817:2014 Welding - Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) - Quality levels for imperfections (ISO 5817:2014)
EN 751-3:1996/AC:1997 Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water - Part 3: Unsintered PTFE tapes
EN 1555-3:2010+A1:2012 Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 3: Fittings
EN 1045:1997 Brazing - Fluxes for brazing - Classification and technical delivery conditions
EN 1515-1:1999 Flanges and their joints - Bolting - Part 1: Selection of bolting
EN 12007-3:2015 Gas infrastructure - Pipelines for maximum operating pressure up to and including 16 bar - Part 3: Specific functional requirements for steel
EN 1254-4:1998/AC:1999 COPPER AND COPPER ALLOYS - PLUMBING FITTINGS - PART 4: FITTINGS COMBINING OTHER END CONNECTIONS WITH CAPILLARY OR COMPRESSION ENDS
EN 440 : 1994 WELDING CONSUMABLES - WIRE ELECTRODES AND DEPOSITS FOR GAS SHIELDED METAL ARC WELDING OF NON ALLOY AND FINE GRAIN STEELS - CLASSIFICATION
EN 10226-2:2005 Pipe threads where pressure tight joints are made on the threads - Part 2: Taper external threads and taper internal threads - Dimensions, tolerances and designation
EN ISO 15613:2004 Specification and qualification of welding procedures for metallic materials - Qualification based on pre-production welding test (ISO 15613:2004)
EN 1254-5:1998 Copper and copper alloys - Plumbing fittings - Part 5: Fittings with short ends for capillary brazing to copper tubes
EN 1057:2006+A1:2010 Copper and copper alloys - Seamless, round copper tubes for water and gas in sanitary and heating applications
EN ISO 15612:2004 Specification and qualification of welding procedures for metallic materials - Qualification by adoption of a standard welding procedure (ISO 15612:2004)
ISO 15610:2003 Specification and qualification of welding procedures for metallic materials — Qualification based on tested welding consumables
ISO 9454-2:1998 Soft soldering fluxes Classification and requirements Part 2: Performance requirements
EN 1254-1:1998 Copper and copper alloys - Plumbing fittings - Part 1: Fittings with ends for capillary soldering or capillary brazing to copper tubes
EN 12007-1:2012 Gas infrastructure - Pipelines for maximum operating pressure up to and including 16 bar - Part 1: General functional requirements
EN 1254-2:1998 Copper and copper alloys - Plumbing fittings - Part 2: Fittings with compression ends for use with copper tubes
EN 751-2:1996 Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water - Part 2: Non-hardening jointing compounds
ISO 12176-1:2017 Plastics pipes and fittings — Equipment for fusion jointing polyethylene systems — Part 1: Butt fusion
EN ISO 9454-2:2000 Soft soldering fluxes - Classification and requirements - Part 2: Performance requirements (ISO 9454-2:1998)
EN 473:2008 Non-destructive testing - Qualification and certification of NDT personnel - General principles
EN 15266:2007 Stainless steel pliable corrugated tubing kits in buildings for gas with an operating pressure up to 0,5 bar
PREN 15001-1 : DRAFT 2017 GAS INFRASTRUCTURE - GAS INSTALLATION PIPEWORK WITH AN OPERATING PRESSURE GREATER THAN 0,5 BAR FOR INDUSTRIAL INSTALLATIONS AND GREATER THAN 5 BAR FOR INDUSTRIAL AND NON-INDUSTRIAL INSTALLATIONS - PART 1: DETAILED FUNCTIONAL REQUIREMENTS FOR DESIGN, MATERIALS, CONSTRUCTION, INSPECTION AND TESTING
ISO 12176-2:2008 Plastics pipes and fittings — Equipment for fusion jointing polyethylene systems — Part 2: Electrofusion
EN 1011-2:2001/A1:2003 WELDING - RECOMMENDATIONS FOR WELDING OF METALLIC MATERIALS - PART 2: ARC WELDING OF FERRITIC STEELS
EN 1044 : 1999 BRAZING - FILLER METALS
ISO 15612:2004 Specification and qualification of welding procedures for metallic materials Qualification by adoption of a standard welding procedure
ISO 5817:2014 Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) — Quality levels for imperfections
EN ISO 15611:2003 Specification and qualification of welding procedures for metallic materials - Qualification based on previous welding experience (ISO 15611:2003)
EN ISO 228-1:2003 Pipe threads where pressure-tight joints are not made on the threads - Part 1: Dimensions, tolerances and designation (ISO 228-1:2000)
ISO 15614-1:2017 Specification and qualification of welding procedures for metallic materials — Welding procedure test — Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys
EN 12279:2000/A1:2005 GAS SUPPLY SYSTEMS - GAS PRESSURE REGULATING INSTALLATIONS ON SERVICE LINES - FUNCTIONAL REQUIREMENTS
ISO 15609-1:2004 Specification and qualification of welding procedures for metallic materials Welding procedure specification Part 1: Arc welding
ISO 15611:2003 Specification and qualification of welding procedures for metallic materials — Qualification based on previous welding experience
EN 437:2003+A1:2009 Test gases - Test pressures - Appliance categories
ISO/IEC 17020:2012 Conformity assessment — Requirements for the operation of various types of bodies performing inspection
EN 1555-4:2011 Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 4: Valves
EN 10241:2000 Steel threaded pipe fittings
EN 751-1:1996 Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water - Part 1: Anaerobic jointing compounds
EN ISO 15609-1:2004 Specification and qualification of welding procedures for metallic materials - Welding procedure specification - Part 1: Arc welding (ISO 15609-1:2004)
EN 1555-5:2010 Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 5: Fitness for purpose of the system
EN 12007-2:2012 Gas infrastructure - Pipelines for maximum operating pressure up to and including 16 bar - Part 2: Specific functional requirements for polyethylene (MOP up to and including 10 bar)
EN 499 : 1994 WELDING CONSUMABLES - COVERED ELECTRODES FOR MANUAL METAL ARC OF NON ALLOY AND FINE GRAIN STEELS - CLASSIFICATION
ISO 9453:2014 Soft solder alloys Chemical compositions and forms
EN 1555-2:2010 Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 2: Pipes
EN 13067:2012 Plastics welding personnel - Qualification testing of welders - Thermoplastics welded assemblies
ISO 15613:2004 Specification and qualification of welding procedures for metallic materials Qualification based on pre-production welding test
ISO 834-1:1999 Fire-resistance tests Elements of building construction Part 1: General requirements
EN 14291:2004 Foam producing solutions for leak detection on gas installations
EN ISO 15610:2003 Specification and qualification of welding procedures for metallic materials - Qualification based on tested welding consumables (ISO 15610:2003)
ISO 15607:2003 Specification and qualification of welding procedures for metallic materials General rules
EN 1762:2017 Rubber hoses and hose assemblies for liquefied petroleum gas, LPG (liquid or gaseous phase), and natural gas up to 25 bar (2,5 MPa) - Specification
EN 331:2015 Manually operated ball valves and closed bottom taper plug valves for gas installations for buildings
EN 14717:2005 Welding and allied processes - Environmental check list
EN 10208-1:2009 Steel pipes for pipelines for combustible fluids - Technical delivery condi-tions - Part 1: Pipes of requirement class A
EN 29453 : 1993 SOFT SOLDER ALLOYS - CHEMICAL COMPOSITIONS AND FORMS
CR 13737:2001 Implementation Guide for functional standards prepared by CEN/TC 234 "Gas supply"
EN 10242:1994/A2:2003 THREADED PIPE FITTING IN MALLEABLE CAST IRON
EN 970:1997 Non-destructive examination of fusion welds - Visual examination
EN 10226-1:2004 Pipe threads where pressure tight joints are made on the threads - Part 1: Taper external threads and parallel internal threads - Dimensions, tolerances and designation
EN 12799:2000/A1:2003 BRAZING - NON-DESTRUCTIVE EXAMINATION OF BRAZED JOINTS
ISO 228-1:2000 Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation
EN 14800:2007 Corrugated safety metal hose assemblies for the connection of domestic appliances using gaseous fuels
EN ISO 15607:2003 Specification and qualification of welding procedures for metallic materials - General rules (ISO 15607:2003)
EN ISO/IEC 17020:2012 Conformity assessment - Requirements for the operation of various types of bodies performing inspection (ISO/IEC 17020:2012)
EN 10255:2004+A1:2007 Non-Alloy steel tubes suitable for welding and threading - Technical delivery conditions
EN 1776:2015 Gas infrastructure - Gas measuring systems - Functional requirements
EN 287-1:2011 Qualification test of welders - Fusion welding - Part 1: Steels

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